Continuous glass-melting pot.



No. 856,449. PATENTED JUNE 11 1907.

, G. J. GRITES & J. H. BREBSB. CONTINUOUS GLASS MELTING POT.

APPLICATION FILED 0OT.1B. 1906.

a snsms-snnm 1. (\l

LE-11L;

rHE NORRIS PETERS 00., WASHINGTON, a c

No. 856,449. PATENTED JUNE 11, 1907. G. J. CRITBS & J. H. BREESE.CONTINUOUS GLASS MELTING POT.

APPLICATION FILED OCT. 18, 1906.

2 $HEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

CLARENCE J. CRITES AND JOSEPH HENRY BREESE, OF IVASHINGTON,PENNSYLVANIA.

CONTINUOUS GLASS-MELTING POT.

Specification of Letters Patent.

Patented June 11, 1907.

Application filed October 18,1906. Serial No. 339,529.

To aZZ whom, it may concern.-

Be it known that we, CLARENCE J CRITES and JOSEPH HENRY BnEEsE, citizensof the United States, residing at ashington, in the county ofWVashington and State of Pennsylvania, have invented certain new anduseful Improvements in Continuous Glass-Melting Pots; and we do declarethe following to be-a full, clear, and eXact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to melting pots, of the class known as continuousmelting pots, or devices of this character wherein the compound forproducing the glass is fed continuously thereto at one point and removed continuously therefrom at another point, and has for its object toimprove the construction and increase utility, and economy ofconstruction and operation of devices of this character.

With these and other objects in view, which will appear as the nature ofthe invention is better understood, the same consists in an improvedconstruction and novel arrangement of the parts as specifically setforth in the claims forming a part hereof.

- In the drawings forming a part of this specification and in whichcorresponding parts are denoted by like designating characters isillustrated the preferred form of the embodiment of the inventioncapable of carrying the same into practical operation.

In the drawings thus employed, Figure 1 is a front elevation of theimproved device. Fig. 2 is a section on the line 22 of Fig. 1. Fig. 3 isa section on the line 3-3 of Fig. 1. Fig. 4 is a section on the line i-4of Fig. 2.

The improved device is constructed in on single mass of the refractorymaterial usually employed in manufacturing melting pots for glass andfor similar purposes, and comprises a body portion represented as awhole at 10 with a concave bottom 11, vertical side walls 12 and a domelike top 13. The improved. body is designed to be located within thefurnace in the usual manner.

The body portion of the device is some what egg-shaped transversely, asrepresented in Figs. 2 and 3, andfor the purpose of this description,the larger end of the body will be referred to as the front of thedevice and the smaller portion as the rear of the device.

the elliciency,

Disposed intermediate the interior of the de vice is an upwardly curvedpartition 14, the latter being lowest at the rear end of the body, asshown in Fig. 4. This partition divides the pot into a fusing chamber 14and a gathering chamber 19, a curved partition 19 connecting the bottom11 and partition 14, and subdividing the gathering chamber to furnish aworking chamber 19 Leading through the front portion of the body abovethe partition 14 is a feed aperture 15 through which the material forproducing the glass is inserted and deposited upon the partition 14. Theforward end of the partition, or that adjacent to the feed aperture ormouth 15 forms, in conjunction with the front wall of the pot a pocket15, that operates to retain any slag or impurities present, so that allof the stock that escapes from the fusing chamber is free from anyforeign matter that would detract from the commercial value of theproduct. Leading through the dome-like top 13 at the smaller rear end isan inlet 'l'lue 16 through which a portion of the heating medium entersthe fusing chamber above the partition 1%, and piercing the front wallof the body is an outlet llue 17, the latter being connected in anysuitable manner with the draft chimney or stack, the latter not beingshown as it forms no part of the present invention. Leading through thepartition 1A at its rear end is a discharge aperture 18 through whichthe melted glass flows to the gathering chamber and thence to theworking chamber through one or more apertures 20 as hereafter explained.

Piercing the front wall of the body and communicating with the workingchamber is an aperture 21, and through which the glass may be gathereiin the usual manner. Piercing the front wall of the body ad.- j acent tothe gathering aperture 21 is another aperture 22 communicating with thegathering chamber below the partition 14, to provide means of accessthereto when required. The apertures 2122 are provided with detachableclosures of the usual construction, but they are not shown as they formno part of the present invention and as their construction is so wellknown. The apertures 21-22 are surrounded by guard hoods 2L24, and thefeed aperture 15 is also provided with a guard hood 25.

.uous, as will be obvious.

The Walls of the device may be of any required thickness, and the devicemay be of any required size or capacity.

l/Vith a device thus constructed, the operation is as follows: Thecompound from which the glass is manufactured is fed in through theaperture 15, as above described and deposited upon the partition 14. Asfast as the glass is melted, it runs down through the aperture 18 intothe gathering chamber, and thence through the apertures 20 into theworking chamber 21 from which it may be removed in the ordinary manner,the supply of material being continuous as required through the feedaperture 15. By this means, the melting operation is contin- The supplyof glass in the working chamber is thus uniform, and may be maintainedat any required height by keeping up the supply of material in the feedaperture 15, as will be obvious. Thus the supply may be maintained inthe working chamber at a uniform depth so that the operators can reachthe material at the same point in the chamber at all times, which thusdoes not vary materially. If increased heat is required, it may beadmitted through the inlet 16 and discharged through the outlet 17, andto control this auxiliary heat, a closing tile or damper 26 is provided,which may be employed to partially or wholly cover the inlet flue 16 andthus effectually control the supply of the auxiliary heating medium. Theaperture 22 permits the inspection of the gathering chamber of the lowerportion and clearing of the same when required. By this means also, theinterior surface of the device is accessible during the drying processwhen the pot is first constructed, so that in event of cracks orfractures developing, they can be readily corrected.

The device is simple in construction, is

effectual and practical in operation and adapted to the manufacture ofany required quality of glass or like material.

Having thus described the invention, what is claimed as new is:

A one-piece glass melting pot of substantially ovoidal form inhorizontal section hav ing an arched top, a concaved bottom and anintermediate arched partition forming within the pot an upper fusingchamber, the space below said partition being subdivided by a verticaltransversely curved partition into a rear gathering chamber and a frontwork ing chamber, said intermediate partition having at its rear end adischarge opening leading from the fusing to the gathering chamber, andthe vertical partition having at its lower edge openings leading fromthe gathering to the working chamber, said pot being provided at itsfront with a charging opening leading to the fusing chamber, and a gasescape opening leading therefrom and with a pair of hooded openingscommunicating respectively with the gathering and working chambers,there being formed in the top wall of the pot a heat inlet flue enteringthe fusing chamber, and a movable closure for wholly or partiallyclosing said inlet flue.

In testimony whereof we have hereunto set our hands in presence of twosubscribing witnesses.

CLARENCE J. CRITES. JOSEPH HENRY BREESE.

Witnesses:

JosEPrI DUDLEY, GEORGE JENNINGS.

